Improvement in chain-pumps



J. S. CORBIN.

CHAIN-PUMP.

Patented Aug. 15, 1876. 3g Uff-JGZ.

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WITNESSES NPETERS, PHOTO UIMOGRAPHE `to the latter by rivets or bolts h2.

NITED N "STATES JAMES S. OORBIN, OF LAUREL, OHIO.

4IMPROVEMENT IN CHAIN-PUMPS.

Specification forming part of Letters Patent No. 181,145, dated August 15, 1876; application led May 31, 1876.

To all whom it may concern:

Beit known that I, JAMES S. OORBIN, of Laurel, in the county of Clermont and State of Ohio, have invented new and useful Improvements in Chain-Pumps, of which the following is a specification:

My improvements relate to a peculiar construction of curb and shoe or roller-box for chain-pumps.

My invention consists, first, in constructing the curb' partly of cast-iron and partly of Wood, the case being provided with grooves, into which the sides are inserted. The sides are bound securely together by means of metal bands placed horizontally and vertically on the inside and outside, respectively.

My invention consists, secondly, in a castiron shoe, which rests on the cistern-floor, and is provided with journalbearings for the lower sheave, and socket for the lower end of the customary Wooden tube for the chain.

In the accompanying drawing, Figure l is a top view of my improved chain-pump. Fig. 2 is a vertical section on the line 2 2, Fig. 1. Fig. 3 is a .vertical section on the line 33, Fig. 1. Fig. 4 is a perspective view of the castiron shoe, a portion of the top being broken away to exhibit the supporting-ledges for the tube. v

A may represent the Well or cistern casing; B, the cast-iro'n shoe or sheave-box; C, the curb, and D' the rag or sprocket Wheel. The curb C is provided with a cast-iron base, E, having channels or grooves e, for the reccption of the sides F F1F2 F3, constructed of wood. Near veach end of the sides F'F1 vertical metal bands G are placed.- These bands G are perforated to receive the ends It of lateral metal bands or rods H, which are securely attached to the former by nuts or taps g2. The bands or rods H form ribs to support the side F2 F3, and are rigidly secured I is the Water-receptacle placed at a convenient height within the curb, and J a spout.

The top of the curb has a horizontal frame,

M, upon which are placed the bea-rings K for the journals l of the axle L, carrying the sprocket or rag wheel D. On one end of the axle L is applied a ratchet-wheel, N, with which av pawl, n, engages. The sprocket- Wheel D has a hub, d, curved bars d1, for attachment of `the rim d2, which is grooved for the reception of the checks or stops d3. Theinner side of the rim is perforated to permit escape of water. Depending from the waterreceptacle I is the water-tube O, which may be supported in any suitable manner between each end. Y

The cast-iron shoe B rests on the cisterniioor, and affords journal-bearings b for the lower sheave b1, and has a socket, b2, for the lower end o of the tube O. The shoe is provided with ledges b3, on which the end of the tube rests. The tube is secured therein by wood-screws b4, which are inserted through perforations b5, so that the tube holds the shoe in erect position. P is the chain, supported by checks or stops d3, and provided with but tonsp. Q is the handle attached to the end of the axle for turning the wheel. R is the pump-cover.

yThe groove 6 in the base E is generally iilled with thick paint, in order to exclude the Water from the curb and prevent it from rotting, and the Whole curb thoroughly painted inside and out.

The curb, being constructed in the manner described, will be found in use to be equal in durability to an iron curb, beside being much lighter in weight. The lnetal parts effectually prevent warping and parting of the Wooden portions, and the grooves prevent any contact ofthe elements with the lower edges of the boards, which are, in the common curb, the first to give Way. The curb can readily be taken to pieces, repainted throughout, put together again, and replaced as good as new at any time.

Having thus described my invention, the following is what I claim as new, and desire to secure by Letters Patent:

1. The curb C, provided with channeled or grooved base E c, wood sides F F1 F2 F3, metal bands Gr, bands or rods H, and nuts g2, as and for the purpose set forth.

2. The cast-iron shoe B, having journalbearings b for the lower shcave, and adapted to rest on the isterntloor, in combination with the water-tube O, as and for the purpose set forth.

1n testimony of which invention I hereunto set my hand.

JAMES S. CORBIN.

Attest GEO. H. KNIGHT, WALTER ALLEN. 

